Environmental Biology of Fishes

, Volume 3, Issue 2, pp 239–240 | Cite as

Will alewives (Alosa pseudoharengus) feed in the dark?

  • John Janssen


Results of a laboratory experiment indicate that alewives (Alosa pseudoharengus) can feed in the dark onDaphnia and that this feeding is not size selective. It is presumed that the fish filter feed. Observations on small alewives (ca 50 to 70 mm) confirm that they will filter feed in Lake Michigan and filtering activity increases as it gets dark.


Feeding behavior Lake Michigan Planktivory Predation Zooplankton Daphnia Nocturnal feeding 

References cited

  1. Brooks, J. L. & S. I. Dodson. 1965. Predation, body size, and composition of plankton. Science 150: 28–35.Google Scholar
  2. Conover, W. J. 1971. Practical nonparametric statistics. John Wiley & Sons, Inc., New York. 462 pp.Google Scholar
  3. Janssen, J. 1976. Feeding modes and prey size sélection in thé alewife (Alosa pseudoharengus). J. Fish. Res. Board Can. 33:1972–1975.Google Scholar

Copyright information

© Dr. W. Junk bv Publishers 1978

Authors and Affiliations

  • John Janssen
    • 1
  1. 1.Biology DepartmentLoyola University of ChicagoChicagoUSA

Personalised recommendations